Chemistry Questions

Q:

Which of the following is an unsaturated Hydrocarbon?

A) Butane B) Pentane
C) Ethyne D) Propane
 
Answer & Explanation Answer: C) Ethyne

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Q:

Number of Sigma and Pi bonds in benzene, respectively is

A) 12 and 3 B) 3 and 3
C) 6 and 3 D) 9 and 3
 
Answer & Explanation Answer: A) 12 and 3

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Q:

Crystallisation is an example of?

A) Physical Change B) Chemical Change
C) Chemical Reaction D) Galvanisation
 
Answer & Explanation Answer: A) Physical Change

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Q:

The chemical formula of Propane is

A) C3H8 B) C4H10
C) C2H6 D) CH4
 
Answer & Explanation Answer: A) C3H8

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Q:

Which of the following is NOT correctly matched?

A) Sandstone - conglomerate   B) Limestone - Marble  
C) Granite - Basalt   D) Gabbro - Serpentine  
 
Answer & Explanation Answer: A) Sandstone - conglomerate  

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Q:

When two liquids do not mix with each other to form a solution, what is it called?

A) Solvent B) Solute
C) Immiscible D) Decantation
 
Answer & Explanation Answer: C) Immiscible

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Q:

In water treatment plant, use of chloramines ensures __________

A) taste and odour control B) weed control in reservoirs
C) disinfection D) removal of permanent hardness
 
Answer & Explanation Answer: C) disinfection

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Q:

Binomial Nomenclature was founded by

A) Charles Darwin B) Robert Nucleus
C) Carl Linnaeus D) Lamarck
 
Answer & Explanation Answer: C) Carl Linnaeus

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